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udev-md-raid-assembly.rules: Skip non-ready devices 

If a device isn't fully initialized (e.g if it should be
handled by multipathing) it should not be considered for
md/RAID auto-assembly.  Doing so can cause incorrect results
such as causing multipath to fail during startup.

There is a convention that the udev environment variable
SYSTEMD_READY be set to zero for such devices.  So change
the mdadm rules to ignore devices with SYSTEMD_READY==0.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
This commit is contained in:
Hannes Reinecke 2017-03-27 11:15:44 +11:00 committed by Jes Sorensen
parent 4c829c2252
commit 3a77acd717
1 changed files with 3 additions and 0 deletions
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udev-md-raid-assembly.rules
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@ -7,6 +7,9 @@ ENV{ANACONDA}=="?*", GOTO="md_inc_end"
SUBSYSTEM!="block", GOTO="md_inc_end"
# skip non-initialized devices
ENV{SYSTEMD_READY}=="0", GOTO="md_inc_end"
# handle potential components of arrays (the ones supported by md)
ENV{ID_FS_TYPE}=="linux_raid_member", GOTO="md_inc"